6121121673 has 4 divisors (see below), whose sum is σ = 8161495568. Its totient is φ = 4080747780.

The previous prime is 6121121639. The next prime is 6121121683. The reversal of 6121121673 is 3761211216.

6121121673 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-6121121673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6121121673.

It is not an unprimeable number, because it can be changed into a prime (6121121683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020186943 + ... + 1020186948.

It is an arithmetic number, because the mean of its divisors is an integer number (2040373892).

Almost surely, 2^6121121673 is an apocalyptic number.

It is an amenable number.

6121121673 is a deficient number, since it is larger than the sum of its proper divisors (2040373895).

6121121673 is a wasteful number, since it uses less digits than its factorization.

6121121673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040373894.

The product of its digits is 3024, while the sum is 30.

The square root of 6121121673 is about 78237.5975666431. The cubic root of 6121121673 is about 1829.2665970352.

Adding to 6121121673 its reverse (3761211216), we get a palindrome (9882332889).

The spelling of 6121121673 in words is "six billion, one hundred twenty-one million, one hundred twenty-one thousand, six hundred seventy-three".